griffith



(No Model.) 2 Sheets-Sheet 1.

T. GRIFFITH. VBNTILATOR.

No. 545,794. Patented Sept. 3, 1895.

/VVENTOR TTOHNEYS.

IIILVHL (No Model.) l 2 sheetssmeet 2.

T.. GRIFFITH.

VENTILATOR.

No. 545,794. Patented Sept. 3, 1895.

i u t By MMV@ A TTOHNEYS.

rares Nitin VENTI LATOR.

SPEGZIFICAHON' forming part of Letters Patent No. 545,794, dated September 3, 1895.

Application flied nach is, 1895.-

To a/ZZ whom it may con/cern:l

Be it known that I, THOMAS GRIFFITH, of the United States Army, have invented a new and Improved Ventilator, of which the following is a full, clear, and exact description.

This invention relates to certain improvements in ventilators, and particularly to that class of ventilators which are employed in railway-coaches and the like; and the object of the 'invention is to provide a device of this character of an inexpensive and simple construction, which shall present certainfeatures of novelty and advantages for use over other similar devices heretofore employed, all as will be hereinafter fully set forth.

The novel features of the invention will be carefully defined in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar gures of reference indicate corresponding parts in all the views.

Figure 1 is a sectional plan view of a railway coach or car provided with my improved ventilator. Fig. 2 is a vertical mid-section of the same. Fig. 3 is a detail view drawn to a larger scale and showing the devices for regulating the air-current and removing cinders from the air-conducting channel of the ventilator. Figs. 4 and 5 are sectional views taken at right angles with one another, showing a modified form of the cowls or hoods located at the ends of the air-conducting channel outside the car. Fig. 6 is an enlarged 'detail View showing the air-deflecting plates mounted on the conducting-channel. Fig. 7 is a cross-section 0f the channel on the line 7 7 in Fig. 6, showing the outlets for the air inside the car and the arrangement of the said deflectingplates; and Figs. 8 and 9 are partial detail views showing the air-outlet usually arranged in the door of the car.

In the views, l represents the railway car or coach as a whole, which is provided near its upper part with one or more longitudinal conducting-channels 2, (there being but one, as

Serial No. 542,201. (No model.)

form, being covered at their mouths with wire netting or gauze 4.

' Inside the car the channel 2 is provided at intervals along its opposite sides with air-outlets consisting ofshort tubes 5, having their inner ends 5 projecting into the channel beyond the inner Wall thereof, as clearly seen in the sectional View, Fig. 7, and adjacent to the outer ends of these outlets are pivoted, at 6,

deflecting-platcs 6, adapted to be swung so as to deflect the air, issuing from the said outlets, upward said plates being arranged at an inclination to the mouth. of the outletsas clearly seen in the drawings. These deflecting-plates 6 are especially adapted for use in sleeping-cars and the like to prevent drafts.

At opposite ends of the car the channel 2 is provided with valves 8 adapted to be opened by the entry of the current of air into the channel in one direction and to be closed by the entry of a current of air in the other direction, and adjacent to these valves are arranged dampers 9, serving to regulate the air current through the said chan-nel. spective cowls 3 may be in some cases each provided with a valve 7, opening inwardly, as seen inFigs. 4 and 5, whereby, should a current of air enter at one of the lateral cowls 3,

it would be prevented from passing out at the other cowl and be compelled to pass along the channel 2. l

To permit the removal of cinders and the like from'the channel 2, I provide at each end thereof a collecting-chamber having a removable bottom, and this chamber, as seen in Fig. 3, is formed of an interiorly screw-threaded boss 10, extending from the under side of the channel 2 and provided with a screw-cap 11, having an interior recess adapted to receive and hold the cinders falling therein.

To regulate the outflow of air from the car, I preferably provide in each door 12 at the lower part thereof an outlet 13, having a covering 13LL of wire gauze or netting at one side and having at the other side a hinged coverplate 14, adapted to close said opening said -cover-plate opening outward.

The rccowl and the forward valve, 8 of the conducting-channel inside the car and passing out at the respective outlets 5, the valve 8 at the opposite end of the car being meanwhile held closed by the air-pressure in the channel. Should any cinders or dust enter the channel 2, the same will be deposited in the collectingchambers and may be removed by unscrewing the caps 11. The outiow of air from the coach is permitted by raising the hinged cover 14, whereby the air is permitted to pass through the outlet 13.

Should the wind be blowing in a direction at an angle to the line of the railway, the air will enter one of the latter hoods 3 and be directed inside the car in a similar manner to that above described.

It is evident that the invention is susceptible of considerable modification as to its de tails, and for this reason I do not wish to be understood as limiting myself to the exact construction and arrangement ofparts herein shown.

Y Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination with a car, of a conducting channel mounted lherein and adapted to receive air outside the car, said channel being provided at points inside the car with outlet tubes having their inner ends projecting interiorly beyond the inner wall of the channel, substantially as set forth.

2. The combination with a car, of a conducting channel mounted therein and adapted to receive air outside the car, said channel being provided at points inside the car with outlet tubes having their inner ends projecting beyond the inner Wall of the channel, and deflecting plates pivoted to the outer side of the conducting channel and adapted to defiect the air issuing from said outlet tubes, substantially as set forth.

3. The combination with a car, of a conducting channel mounted therein and adapted to receive air outside the car, said channel being provided at points inside the car with outlet tubes having their inner ends projecting beyond the inner wall of the channel, and de flecting plates pivoted to the outer sides of the channel, said deeeting plates being inclined to the mouths ot the outer tubes and being adapted to be moved on their pivots thereby deflecting the air issuing from said tubes, substantially as set forth.

4. In a ventilator, the combination of aconducting channel provided at its end with laterally-projecting funnel-shaped hoods having their outer ends open and their inner ends communicating with the interior of the said channel, said hoods being arranged at opposite sides of the channel and being provided at their points of communication therewith with Valves adapted to open and close in opposite directions, said valves being adapted to be opened and closed respectively bythe entry of air through one of the hoods, sub stantially as set forth.

THOMAS GRIFFITH. Witnesses: y

W. E. WATERS, J. MILLER MoDoNALD. 

